ABERDEEN PROVING GROUND, Md. -- The Army's science and technology hub being built at Aberdeen Proving Ground, Md. was the Assistant Secretary of the Army for Installations and Environment Katherine Hammack's first stop on a two-day installation tour beginning Oct. 21.

At APG, Hammack saw the past, the present and the future from the air during a helicopter fly-over, and through the windshield as she toured significant locations on the installation.

Installation Commanding General Maj. Gen. Nick Justice and Garrison Commander Col. Orlando Ortiz briefed Hammack on the transformation of Aberdeen Proving Ground kicked off by the Base Realignment and Closure process. More than $1.4 billion in construction projects are underway as the base absorbs missions from closing installations.

In addition to high-technology facilities, officials showed Hammack cultural resources sites such as the first Methodist Meeting House constructed in America and the Pooles Island Lighthouse.

During her visit Hammack received briefings on Army Family Housing and the Residential Communities Initiative, new construction, energy and the environment.

Hammack is visiting the U.S. Army Garrison at Natick, Mass. Oct. 22. Her plans there are to review non-chemical water purification and energy technologies. Hammack's areas of responsibility include sustainability and environmental initiatives, installation policy, and oversight and coordination of energy security.